The whole world should be proud of them. On this being the end for Putin, I was speaking to a friend of mine about the invasion on the first or second day of Russia's invasion and after discussing the likely prospect that no one would come to Ukraine's aid (militarily), I said, "The only positive thing one can hope, and it is nowhere near sufficient to accept anything Russia has done, is that this will be Putin's Afghanistan. Afghanistan cost Gorbachev everything, hopefully Ukraine will cost Putin everything."

(Aside: I know the flaw in this analogy. Unlike Putin, Gorbachev considered Afghanistan a mistake and began planning an exit as soon as he became General Secretary. However, that Afghanistan accelerated the fall of the Soviet Union cannot be argued against imo.)

That's not enough, of course. But if we aren't prepared to risk a nuclear exchange over what is being done to Ukrainians then there is nothing worthy of the risk.